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Oral contraceptive pills linked to fall in ovarian cancer deaths worldwide: Study

Widespread use of the oral contraceptives has resulted in a global drop in the number of deaths caused due to ovarian cancer, according to a major new study. "The main reason for the favourable trends

India TV Lifestyle Desk, New Delhi [ Published on: September 06, 2016 13:54 IST ]
The use of oral contraceptives protection against ovarian
The use of oral contraceptives protection against ovarian cancer

Widespread use of the oral contraceptives has resulted in a global drop in the number of deaths caused due to ovarian cancer, according to a major new study.

"The main reason for the favourable trends is the use of oral contraceptives (OCs), particularly, in the USA and countries of the EU where OCs were introduced earlier," the study published in the journal Annals of Oncology, said.

The study further pointed to the decline in long-term use of hormone replacement therapy (HRT) as another factor behind the reducing number of ovarian cancer deaths. 

Using data on deaths from ovarian cancer from 1970 to the most recent available year from the World Health Organisation, the researchers found that in the 28 countries of the EU (minus Cyprus due to the unavailability of data) death rates decreased by 10 per cent between 2002 and 2012, from an age standardised death rate per 100,000 women of 5.76 to 5.19. 

In the US, the decline was even greater, with a 16 per cent drop in death rates from 5.76 per 100,000 in 2002 to 4.85 in 2012. 

Among European countries, the percentage decrease ranged from 0.6 per cent in Hungary to over 28 per cent in Estonia, while Bulgaria was the only European country to show an apparent increase. 

In Britain, there was a 22 per cent decrease in death rates, which fell from 7.5 to 5.9 per 100,000 women. 

"The large variations in death rates between European countries have reduced since the 1990s when there was a threefold variation across Europe from 3.6 per 100,000 in Portugal to 9.3 in Denmark," said lead researcher Carlo La Vecchia, Professor at University of Milan in Italy. 

"This is likely to be due to more uniform use of oral contraceptives across the continent, as well as reproductive factors, such as how many children a woman has," La Vecchia said. 

(With agency input)

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